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Finding the Fourth Proportional to 513,571.56, 708,826.05 and 344,100.12

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Solution

The fourth proportional to 513,571.56, 708,826.05 and 344,100.12 is: 474,923.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,571.56 : 708,826.05 = 344,100.12 : x
  2. Step 2: Convert to fraction form
    513,571.56/708,826.05 = 344,100.12/x
  3. Step 3: Cross multiply
    513,571.56x = 708,826.05 × 344,100.12
  4. Step 4: Simplify right side
    513,571.56x = 243,907,128,864.13
  5. Step 5: Solve for x
    x = 243,907,128,864.13/513,571.56
  6. Step 6: Final answer
    x = 474,923.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.